Stop mechanism for carding machines



Mar. 27, 1923,

,c. H. MORRIS STOP MECHANISM FOR CAHDING MACHINES 2 sheets-sheet 1 Filed Dec. 12, 1921 YVUQ OI GEM/ 1s.

Mar. 27, 1923. 1,450,044 C. H. MORRIS STOP MECHANISM FOR CARDING MACHINES Filed Dec. 12, 1921 2 sheets-sheet 2 Patented Mar. 27, 1923.

ll efine UhliTED PATENT tDFFlQE.

STOP MECHANISM FOR CARDING MACHINES.

Application filed December 12, 1921.

1/ 0 aZZ whomit may concern:

Be it known that I, COLUMBUS H. Mourns, a citizen of the United States, residing at Kannapolis, in the county of Cabarrus and State of North Carolina, have invented certain new and useful Improvements in a Stop Mechanism for Carding Machines; and I do hereby declare the following to be a full, clear,.and exact description of the invention, such as will enable others skilled in the art to .which it appertains to make and use the same.

This invention relates to a carding machine and particularly to a stop mechanism therefor.

One important object is to provide a means whereby uniform strength is assured throughout the length of sliver produced by the machine.

Another important object is to provide a means whereby the machine will stop or cease operation upon decrease in strength ot a sliver during passage through the machine.

Another object is to provide a movable trumpet plate operable to cause the machine to stop operation in the event of breakage of the sliver.

Another object is to provide a stop mecha nism for a carding machine consisting of means operable against the control lever oi? such machine and in turn operable by contact of a movable trumpet therewith.

Additional objects and advantages will hecome apparent from a consideration of the description following taken in connection. with accompanying drawings, illustrating one practical embodiment.

In said drawings Figure 1 is a fragmentary perspectiveview of a carding machine showing my improvement applied thereto;

Figure 2 is a transverse sectional view particularly showing the invention associated with the trumpet of the carding machine, and with such parts mounted on the roll sup orting plate and with the trumpet plate in c osed position;

Figure 3 is a transverse sectional view through the rolls and trumpet plate, illus trating the latter in open position operating the stop mechanism;

Figure at is a detail cross section illustrating the engagement of the stop mechanism with the control lever of the machine and Eerial No. 521,856.

Figure 5 is a detail perspective view of the trumpet plate looking toward the interior face thereof.

Like reference characters designate like or similar parts in the difierent views.

To facilitate an understanding of the invention, fragmentary parts of a carding machine have been illustrated. A bed plate is shown at A from which bearings B rise and. in which the trunnions C of pressure rolls D are journaled. As usual, the staple in the form of a sliver E moves from the carding mechanism F between the rolls D. The usual lever for controlling operation of the carding machine, that is throwing it into and out of gear or operation is shown at G.

Slaid sliver E passes through an opening 10 in a trumpet plate 1.1 and from the inner surface of which plate a trumpet proper at 12 extendsguiding the sliver and condensing it as usual. The plate 11 is mounted on a ho izontal axis as by means of hinges 12 fastened to the plate'and to the plate A. whereby the trumpet plate 11 is capable of swinging movement downwardly toward the carding mechanism. The weight of the plate 10 may be increased by reinforcing ribs at 13. and they may be joined by an oflset arm 14.

Suitable bearings 15 rise from the plate A and journaled in said bearings 15 is a rock shaft 16, having a crank 17 rigid thereon at one end from which a suitable weight 18 depends. At the other end of the rock shaft 15, an arm or crank 19 is provided which is normally maintained in contact with the lever G by the provision of said weight 18.

Crank 1'? is disposed in the path of downward movement of the arm 14.

In practice, should the sliver become weak and stretch (usually resulting in a break). the trumpet plate 11 due to its weight will immediately tall whereby its arm 14- will contact with the lever 17, causing said lever to rock the shaft 16 and move the arm 19 forcibly against the lever G, thus operating the latter so as to throw the carding mechanism out of gear thus stopping operation thereof. It will be realized that the passage of the sliver E through the opening 10 and trumpet 12 serves to maintain the plate 11 in a vertical or normal position and that upon stretching or breakpivoted on a horizontal axis as age of the sliver, such plate will immediately move rearwardly toward the horizontal.

Suitable means is preferably provided to restore the plate 11 to a vertical or normal position for further operation after it has moved downwardly. Such means may consist of a substantially vertically disposed lever 20, passing through an opening 21 in the plate A and having a lug 22 directly engageable with the plate 11. Said lever at its lower end is formed into a pedal 23 and is at 24t in a suitable bracket 25 secured to the floor. It will thus be seen that upon depression of the pedal 23 by means of the foot of the operator, the lever 20 will be swung toward and into contact with the plate 11. It will be seen that when the lever 20 is out of operation, it may be disposed at a distance in the rear of the plate 11.

It will be seen that all of the parts of my improvements are so disposed on the machine as to be out of the way during operation thereof.

It will be further realized that the sliver E produced will not at any portion thereof be of a strength less than is predetermined relative to the weight and movement of the plate 11, since if the sliver should become of such strength, that is weakened, the plate 11 will operate to break the same so that the trouble causing the weakness -may be remedied. The machine of course cannot thereafter be operated until the sliver passing therethrough is at least of such predetermined strength. This insures production of a sliver of substantially uniform strength throughout and one which avoids singling.

Merely one practical embodiment has been illustrated and described, it is to be understood that changes in the details may be-resorted to within its spirit and scope.

Having thus described the invention, What I claim is 1. In a machine of the class described, a trumpet plate, said plate being maintained in a normal position by the sliver above a predetermined strength, a rock shaft, a crank on said rock shaft engageable by said trumpet plate when released due to an abnormal condition of the sliver, a second crank on said rock shaft, means associated with the first crank to maintain the second crank in an operative position, a control element engaged by the second crank and movable thereby upon movement of the trumpet plate against the first crank to stop operation of the machine.

2. In a machine of the class described, a trumpet plate, said plate being maintained in a normal position by a sliver above a predetermined strength, a rock shaft, a crank on said rock shaft engageable by said trumpet plate when released due to an abnormal condition of the sliver, means operable to stop operation of the machine through movement of said rock shaft, and means to normally maintain said shaft with said crank in a position for ef fective engagement by the trumpet plate.

3. In a machine of the class described, a trumpet plate, said plate being maintained in a normal position by a sliver above a predetermined strength, a rock shaft, a crank on said rock shaft engageable by said trumpet plate when released due to an abnormal condition of the sliver, said crank being substantially of U-shape and having a free end extending in a direction away from said plate, means operable by movement of said shaft to stop operation of the machine, and a weight carried by said end of the crank to normally maintain the crank in a position for engagement by said plate.

. In testimony whereof I affix my signature in presence of two witnesses.

mark

Witnesses:

J. A. ADAMS, L. J. BROWN. 

